The Cool Side Pillow Cover

305 reviews
305 reviews
Designed with our exclusive Lulltra ™ Cool technology, the Cool Side Pillow Cover helps regulate body temperature as it maintains a cool-to-the-touch surface all night.

Size: Queen (1 Pc)

100-Night Risk-Free Trial + Free Delivery & Returns

Ships Fast
Ships Fast
Unparalleled Customer Service
Unparalleled Customer Service
1-Year Warranty
1-Year Warranty
  • Queen: 19 x 29 in.
  • King: 19 x 35 in.

To wash: Machine wash separately in cold gentle cycle. Use a mild detergent. Do not use bleach or fabric softener.

To dry: Tumble dry low. Do not iron or dry clean.

Hypoallergenic Formulation
Hypoallergenic Formulation
Machine Washable
Machine Washable
OEKO-TEK Certified
OEKO-TEK Certified

Common Questions About The Coolside™ Pillowcase

How do cooling pillowcases work?

Cotton, silk, and bamboo are common fabrics for a cooling pillow. These fabrics work in different ways to leave a cooling effect. Some pillows are designed to prevent heat from getting trapped while some materials, such as bamboo, are better to wick away sweat or moisture to keep you cool. If you are a hot sleeper, try a cooling pillowcase today with Coop and receive a 100-night trial with every purchase.

What is the best cooling material for a pillowcase?

Our cooling pillowcase is made with innovative cooling technology that feels cold and silky to the touch. Unlike cotton or silk, the Lulltra™ cool fabric material we use is a blend of bamboo-derived viscose rayon and polyester that is also hypoallergenic and breathable. Bamboo is a great cooling material because it helps regulate body temperature and reduces night sweats by wicking away heat and moisture.

Can a cooling pillow protector be washed?

Yes! The cooling pillow protector is machine washable. Put the pillow cover in the washing machine separately on a cold gentle cycle with mild detergent, and dry on tumble dry low. Be sure to not use bleach or fabric softener, and do not iron or dry clean the cooling pillowcase.

Customer Reviews
4.6 Based on 305 Reviews
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Tracy N.
United States United States

Cool, but messes up hair

I found it to be cooler, yes, but it also did what a balloon does to your hair - electricity?

United States United States

Wanted to love it but it won't last

I do enjoy that it seems to keep my pillow cooler, however it has started pilling like crazy and I've had it for less than a month. It's just not durable

Coop Sleep Goods The Cool Side Pillow Cover Review
Stan M.
United States United States

Good idea, not durable

The cool side does work… but after less than a month of normal use, the cover is pilling, and threads are coming loose. Good idea, but my regular pillow cases are far more durable. (Note to Coop: I bought this on Amazon, if that makes any difference…)

Steven S.
United States United States


Was skeptical but gave it a shot. Glad I did. Your covers deliver as advertised.

Melanie N.
United States United States

Love it!

It’s been amazing.